Harry Potter and the Philosopher's Stone, (Harry Potter and the Sorcerer's Stone in the USA.) is a video game, based on J.K. Rowling's first book in the Harry Potter series and the film adaptation. It was published by Electronic Arts and released on 15 November, 2001. The game was released for Microsoft Windows, PlayStation, PlayStation 2, Game Boy Color, Game Boy Advance, the Nintendo GameCube, Xbox and Mac.

Creatures

Gnome: Gnomes are annoying little creatures who bite you and steal your Bertie Botts Every Flavoured Beans. Once they steal them, you can not get them back. They can be easily stunned with the Flipendo knockback jinx.

Orange Snail: Orange Snails can burn you if you touch them or their slime trails. Cast Flipendo to stun them.

Venomous Tentacula: A nasty plant that can bite Harry if he gets too close. The can be wilted by casting Incendio. In Sprout's garden you meet a lot of Venomous Tentaculas. You haven't learned how to cast Incendio then, so you'll have to dodge them.

Doxy: Pixie-like flying beasts who bite when you get too close. Cast Flipendo on them to repel them.

Fire Crab: There are only two Fire Crabs in the whole game, in the fire seed level. It can shoot fire out of it's backside. Cast Flipendo on it twice to knock it over.

Ghost:Nearly Headless Nick has his main role during a level where Harry must avoid Filch and Mrs. Norris. He manages to point Harry the way around the library. The Grey Lady just floats around Hogwarts castle and the Nearly Headless Nick can be talked with, but if you touch the Bloody Baron in the dungeons, you lose stamina. The Baron also indirectly assists you by opening doors when he goes through them. Poltergeist Peeves is causing trouble for Harry and Filch and has to be fought in two Boss fights. The Fat Friar is absent.

Troll: There is only one troll in the game. In the same time that Ron casts the Levitation Charm to hit the club to it's head Harry has to cast Flipendo to keep the junk troll throws away from you.

Dragon: The dragon Norbert is the only dragon in the game. You have to fetch fire seeds for it.

Differences

Ron and Harry see Snape pass them, and then the friends lock the girls' lavatory door and hear Hermione scream. Then, they go and rescue Hermione.

Ron and Harry see the troll get in the girls' lavatory and follow it to save Hermione.

Harry and Ron see Snape leaving the Forbidden corridor while limping. Soon afterwards, Ron and Harry smell something, and then they have to run from the troll. When the troll runs into the girls' lavatory the friends lock the door and hear Hermione scream. Then, they go and rescue Hermione.

Ron tells Harry that a troll managed to get in and trapped Hermione in the girls' bathroom. Harry tries to distract the troll, but it enters the bathroom and the boys follow it.

GBC: On their way to Gryffindor Tower after the Hallowe'en feast has been interrupted, Harry and Ron see the troll entering the girls' lavatory, where they know Hermione is. They follow it.

GBA: Harry and Ron leave the Halloween feast to warn Hermione about the troll. They go directly into the bathroom, finding the troll already in.

Harry tries to kill Quirrell/Voldemort by collapsing pillars on top of him, after he damages Quirrell enough, he will destroy the pillars, Harry then must cast Flipendo at the Mirror, which will absorb it. Then he must cast it again when Quirrell is directly in front/behind the mirror. After which, Quirrell will then start to try and drain Harry's life force. The player must quickly press the square button to resist. Then the player must press the cross button to damage Quirrell when the time is right. Quirrell dies after this part, Harry briefly stares at his corpse, then passes out.

Spells

Drone Jinx (GBC version): This spell can only be used by Chocolate Frog Card combinations; it produces a loud noise, used to scare away or harm opponents.

Flipendo (All versions): This spell knocks objects over, stuns magical creatures, pushes specially-marked blocks out of the way, trigger switches, destroy plants or sun spiky bushes (GameCube, PS2, Xbox). Harry learns this spell in his first Defence Against the Dark Arts lesson (PC/MAC, and GBA), Nearly Headless Nick (PS), or from Ollivander (GBC, Xbox, PS2, and Gamecube). In the PS version, objects which can be Flipendo'd are marked with a white-and-blue sparkle.

Alohomora (All versions except GBC & PS1): This spell unlocks magical locks. Hermione teaches Harry this spell before their Charms lesson (PC/MAC), or when trying not to get caught by Snape (GameCube,PS2,Xbox). On the PS version, Ron uses this spell to open an old area of the Castle, and Hermione uses it to open the door to the Potions Riddle at the Philosopher's Stone Chambers. Harry does not get to learn this spell.

Wingardium Leviosa (PC, PS, GBA, GBC): This spell levitates small blocks, (or in the case of the PS version, any object) conveniently marked with a "W" or yellow sparkle. Harry learns this spell in his Charms lesson (PC/MAC, GBC and PS).

Incendio (All versions except GBA): This spell shrivels Spiky Bushes, burns plants and 'affects' bulbs and temporarily stuns Venomous Tentaculas. Harry learns this spell in his Herbology lesson (PC/MAC and PS), in Transfiguration class (GBC) or in his Charms lesson (GameCube,PS2,Xbox). The PS version marks any object that can be set on fire with a green sparkle.

Verdimillious (PS and GBC): This spell is cast on invisible platforms to make them appear. Harry can then walk on these platforms before they become invisible again. Harry learns this spell in his Defence Against the Dark Arts lesson (PS) or from Hermione on Hogwarts Express (GBC). Marked with a light blue sparkle in the PS version.

Avifors (PS and GBA): This spells used to transform bird statue into a real bird. The purpose of the spell is transform statue bird into real bird and then make table where the statue bird on will move up and down. This table is used as a platform to move from down floor to upper floor. Marked with a red-orange sparkle in the PS version.

Lumos (All versions except GBC and PS): This spell can be cast in the dark so you can push against the wall or to fight ghosts.(PS2, XBox, and Gamecube). The spell can also be used on gargoyles to make shiny platforms appear (PS2, XBox, Gamecube, and PC/MAC).

Alohomora: This spell unlocks magical locks. Hermione teaches Harry this spell before their Charms lesson (PC/MAC), or when trying not to get caught by Snape (GameCube,PS2,Xbox). On the PS version, Ron uses this spell to open an old area of the Castle, and Hermione uses it to open the door to the Potions Riddle at the Philosopher's Stone Chambers. Harry does not get to learn this spell.

Wingardium Leviosa: This spell levitates small blocks, (or in the case of the PS version, any object) conveniently marked with a "W" or yellow sparkle. Harry learns this spell in his Charms lesson .

In the film and book, Harry's broomstick is jinxed in the first Quidditch match. In the PC/MAC and PS1 version, both Quidditch matches have no Jinxed brooms or accidents. In the PS2/Gamecube/XBox version, the Slytherin match is played on a jinxed broom.

In the book, Quirrell summons ropes to tie Harry by snapping his fingers. In the film, Quirrell snaps his fingers to make fire surround the area. In the PC/MAC version, Quirrell moves his hands to conjure fire around the area. But in the PS1 version, Quirrell does not make fire surround the area, but green ropes do tie themselves around Harry at times. And in all the video games, Voldemort is the final boss.

In the PC and Playstation versions of the game, Norbert seems to appear early in the game, unlike in the book and movie where he appears nearly at the end of the story.

Norbert is omitted in the Playstation 2, Xbox, Nintendo Gamecube and Gameboy Advanced versions of the game.

Originally Reparo, Verdimillious and an unnamed spell were to appear in the PC/MAC Version of the game. Also Incendio and Wingardium Leviosa were to have more uses.

The Dursleys were to appear in the PC/MAC Version of the game because they have their model files still in the game.

Harry constantly fights Draco on a daily basis. Though, in the book and movie, Harry doesn't fight Draco at all until Year 2.

In the GBA version of the game, Harry gets caught by Professor Snape instead of Filch, and Harry's detention in the forest isn't the same as the book or movie.

In the GBA version of the game, Harry uses Flipendo on the Troll and it falls in a hole in the girls bathroom. In the book and Movie, Ron used the Levitation Charm on the troll's club to bash the troll's head with it.

In the Playstation 2 and Xbox versions of the game the Quidditch Match against Slytherin is at the last match of the year rather than the first.

In the PC, PS1 and Playstation version of the game, Harry gets trapped in the dungeons during Potions class.

In the Playstation 2, Xbox, Gamecube versions of the game, Harry goes alone in the Forbidden Forest.

The GBC Version of the game has a glitch during the part where you need to find ingredients for Snape. One of them is supposed to be found by examining a tapestry in Snape's office. However, if you get the other ingredient first, the one in Snape's office will never appear and you will be forced to restart the game.